Patents by Inventor Shitong Chen

Shitong Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11261509
    Abstract: The present embodiments provide a metal lithium strip, a prelithiated electrode plate, and a prelithiation process. The metal lithium strip comprises a lithium substrate and a metal element doped in the lithium substrate, the metal element comprises at least two of magnesium, boron, aluminum, silicon, indium, zinc, silver, calcium, manganese and sodium; and the metal lithium strip has a strength a, a width w, and a thickness h, satisfying: ?2-(w/105h)2>0. In the present application, the strength of the lithium strip is adjusted by the doping of the metal elements; meanwhile, the strength of the adjusted lithium strip is matched with its width and thickness ensuring that in the process of rolling the metal lithium strip to a reasonable thickness, the phenomenon of edge cracking of the lithium strip is avoided, lithium metal resources and production costs can be saved, a uniform pre-lithiation effect for electrode plate can also be achieved.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: March 1, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Zhijie Gong, Bin Xie, Shitong Chen
  • Publication number: 20220059826
    Abstract: This application provides a lithium-ion battery and a device. The lithium-ion battery includes a positive electrode plate, a negative electrode plate, a separator located between the positive electrode plate and the negative electrode plate, and an electrolytic solution. A lithium-supplementing layer and a first functional coating are sequentially disposed on a surface of the negative electrode plate facing the separator. A second functional coating is disposed on a surface of the separator facing the negative electrode plate. Both the first functional coating and the second functional coating contain an organic porous particulate material. In the lithium-ion battery provided in this application, the first functional coating and the second functional coating are added to enhance stability of the lithium-ion battery, improve safety of the lithium-ion battery, and effectively improve cycle performance of the lithium-ion battery.
    Type: Application
    Filed: November 2, 2021
    Publication date: February 24, 2022
    Inventors: Shitong CHEN, Zhijie GONG, Bin XIE, Lin MA
  • Patent number: 11223050
    Abstract: The present application provide a spliced lithium strip, preparation method thereof, and related negative electrode plate, battery core, lithium ion battery, battery module, battery pack and apparatus. The spliced lithium strip is formed by splicing two or more base lithium strips, wherein the base lithium strip has a thickness fluctuation of less than 5%; the spliced lithium strip has a spliced area and a non-spliced area alternately distributed along the splicing direction, and the spliced area has a maximum thickness H and the non-spliced area has a minimum thickness L, satisfying ? H - L ? L × 1 ? 0 ? 0 ? % ? 6 ? % .
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: January 11, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Bin Xie, Shitong Chen, Zhijie Gong
  • Publication number: 20210313585
    Abstract: The present application provide a spliced lithium strip, preparation method thereof, and related negative electrode plate, battery core, lithium ion battery, battery module, battery pack and apparatus. The spliced lithium strip is formed by splicing two or more base lithium strips, wherein the base lithium strip has a thickness fluctuation of less than 5%; the spliced lithium strip has a spliced area and a non-spliced area alternately distributed along the splicing direction, and the spliced area has a maximum thickness H and the non-spliced area has a minimum thickness L, satisfying ? H - L ? L × 1 ? 0 ? 0 ? % ? 6 ? % .
    Type: Application
    Filed: June 11, 2021
    Publication date: October 7, 2021
    Applicant: Contemporary Amperex Technology Co, Limited
    Inventors: Bin XIE, Shitong CHEN, Zhijie GONG
  • Patent number: 11120768
    Abstract: A method and system for handling frame dropping during playback of a PPT file. The method comprises operating the DXGI screen capturing module to acquire a prepositioned frame in a graphics card cache (S100); acquiring screen data according to the prepositioned frame (S200); monitoring the screen data and timing a duration in which the screen data does not change (S300); and modifying the screen data when the duration exceeds a preset threshold (S400); performing screen capture by the DXGI screen capturing module when the screen data changes (S500). During the whole process, when the duration in which the screen data does not change exceeds the preset threshold, the screen data is actively modified, so that the frame dropping that occurs when there is no change in the screen data may be avoided, thereby enabling effective handling of the frame dropping during playback of the PPT file.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: September 14, 2021
    Assignee: GUANGZHOU SHIRUI ELECTRONICS CO. LTD.
    Inventor: Shitong Chen
  • Publication number: 20210262066
    Abstract: The present embodiments provide a metal lithium strip, a prelithiated electrode plate, and a prelithiation process. The metal lithium strip comprises a lithium substrate and a metal element doped in the lithium substrate, the metal element comprises at least two of magnesium, boron, aluminum, silicon, indium, zinc, silver, calcium, manganese and sodium; and the metal lithium strip has a strength a, a width w, and a thickness h, satisfying: ?2-(w/105h)2>0. In the present application, the strength of the lithium strip is adjusted by the doping of the metal elements; meanwhile, the strength of the adjusted lithium strip is matched with its width and thickness ensuring that in the process of rolling the metal lithium strip to a reasonable thickness, the phenomenon of edge cracking of the lithium strip is avoided, lithium metal resources and production costs can be saved, a uniform pre-lithiation effect for electrode plate can also be achieved.
    Type: Application
    Filed: April 30, 2021
    Publication date: August 26, 2021
    Applicant: Contemporary Amperex Technology Co., Limited
    Inventors: Zhijie GONG, Bin Xie, Shitong Chen
  • Publication number: 20210210750
    Abstract: The application relates to the field of lithium ion battery technology and, more particularly, relates to a lithium-supplement layer and its negative electrode sheet, a lithium ion battery and a device. The lithium-supplement layer is formed by connecting a transition layer, an oxide layer and a surface layer in sequence, the surface layer contains an appropriate amount of an organic material and a filling substance, which can reduce a winding temperature of the negative electrode sheet, the oxide layer substance in the lithium-supplement layer is used to provide an additional lithium source, after injection, the lithium source can be continuously supplemented during the cycle process to improve the activity of a lithium layer, at the same time, the filling substance contained in the surface layer can effectively play a role of restraining the expansion of an active substance, and improve the battery cycle performance.
    Type: Application
    Filed: April 7, 2020
    Publication date: July 8, 2021
    Applicant: Contemporary Amperex Technology Co., Limited
    Inventors: Shitong CHEN, Bin XIE, Zhijie GONG, Zhao HU, Lin MA
  • Publication number: 20190379020
    Abstract: The present invention provides a separator for a lithium ion battery. The separator includes a substrate, an inorganic coating on at least one surface of the substrate, and an organic coating on at least one surface of the inorganic coating, wherein the coating density of the organic coating is 0.1 mg/1540.25 mm2˜10 mg/1540.25 mm2. Compared with the prior art, the separator of the present invention can improve the deformation of the lithium ion battery and enhance the expansion force that the lithium ion battery can endure, thereby improving the cycle life of the lithium ion battery. In addition, the present invention also provides a lithium ion battery having the separator of the present invention.
    Type: Application
    Filed: August 21, 2019
    Publication date: December 12, 2019
    Inventors: Shitong CHEN, Xinghua TAO, Shengwu ZHANG, Wenqiang CHENG
  • Publication number: 20190103071
    Abstract: A method and system for handling frame dropping during playback of a PPT file. The method comprises operating the DXGI screen capturing module to acquire a prepositioned frame in a graphics card cache (S100); acquiring screen data according to the prepositioned frame (S200); monitoring the screen data and timing a duration in which the screen data does not change (S300); and modifying the screen data when the duration exceeds a preset threshold (S400); performing screen capture by the DXGI screen capturing module when the screen data changes (S500). During the whole process, when the duration in which the screen data does not change exceeds the preset threshold, the screen data is actively modified, so that the frame dropping that occurs when there is no change in the screen data may be avoided, thereby enabling effective handling of the frame dropping during playback of the PPT file.
    Type: Application
    Filed: December 29, 2016
    Publication date: April 4, 2019
    Applicant: GUANGZHOU SHIRUI ELECTRONICS CO. LTD.
    Inventor: Shitong Chen
  • Publication number: 20170288192
    Abstract: The present invention provides a separator for a lithium ion battery. The separator includes a substrate, an inorganic coating on at least one surface of the substrate, and an organic coating on at least one surface of the inorganic coating, wherein the coating density of the organic coating is 0.1 mg/1540.25 mm2˜10 mg/1540.25 mm2. Compared with the prior art, the separator of the present invention can improve the deformation of the lithium ion battery and enhance the expansion force that the lithium ion battery can endure, thereby improving the cycle life of the lithium ion battery. In addition, the present invention also provides a lithium ion battery having the separator of the present invention.
    Type: Application
    Filed: March 31, 2017
    Publication date: October 5, 2017
    Inventors: Shitong Chen, Xinghua Tao, Shengwu Zhang, Wenqiang Cheng